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Grafting heteroelement-rich groups on graphene oxide: Tuning polarity and molecular interaction with bio-ionic liquid for enhanced lubrication
Mu, LW; Shi, YJ; Guo, XJ; Zhuang, W; Chen, L; Ji, T; Hua, J; Wang, HY; Zhu, JH
2017
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume498Pages:47-54
Subtype期刊论文
AbstractTwo different heteroelement-rich molecules have been successfully grafted on graphene oxide (GO) sheets which were then used as lubricant additives in bio-ionic liquid. The grafting was processed with reactions between GO sheets and synthesized heteroelement-rich molecules (Imidazol-1-y1 phosphonic dichloride and 1H-1,2,4-triazol-1-yl phosphonic dichloride, respectively). The modified GO (m-GO) was added into [Choline][Proline] (KIWI) bio-ionic liquid, and has been demonstrated effective additive in promoting lubrication. Different characterization techniques have been utilized to study the reaction between GO and the two modifiers. The effect of molecular structure of the modifiers on the rheological and tribological properties of m-GO/[CH][P] lubricants was systematically investigated. Both theoretical calculation and experimental results demonstrated that the introduced heteroelement-rich groups are beneficial to increase the robustness of lubrication film by intensified hydrogen bonding and enhance the lubricant/friction surface adhesion by increased polarity of the m-GO. As a result, the interfacial lubrication could be significantly improved by these newly developed m-GO/[CH][P] lubricants. (C) 2017 Elsevier Inc. All rights reserved.
KeywordGraphene Oxide Hetero-element Hydrogen Bonding Lubrication Ionic Liquids
DOI10.1016/j.jcis.2017.03.044
Indexed BySCI
Language英语
WOS IDWOS:000399855600005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/27335
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Mu, LW,Shi, YJ,Guo, XJ,et al. Grafting heteroelement-rich groups on graphene oxide: Tuning polarity and molecular interaction with bio-ionic liquid for enhanced lubrication[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,498:47-54.
APA Mu, LW.,Shi, YJ.,Guo, XJ.,Zhuang, W.,Chen, L.,...&Zhu, JH.(2017).Grafting heteroelement-rich groups on graphene oxide: Tuning polarity and molecular interaction with bio-ionic liquid for enhanced lubrication.JOURNAL OF COLLOID AND INTERFACE SCIENCE,498,47-54.
MLA Mu, LW,et al."Grafting heteroelement-rich groups on graphene oxide: Tuning polarity and molecular interaction with bio-ionic liquid for enhanced lubrication".JOURNAL OF COLLOID AND INTERFACE SCIENCE 498(2017):47-54.
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